CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	CNK	CNK Common Stock	CNK Treasury Stock	CNK Additional Paid-In-Capital	CNK Retained earnings (deficit)	CNK Accumulated other comprehensive loss	CNK Total Cinemark Holdings, Inc.'s Stockholders' Equity	CNK Noncontrolling Interests	CUSA	CUSA Class B Common Stock Member	CUSA Common Stock Class A Common Stock Member	CUSA Treasury Stock	CUSA Additional Paid-In-Capital	CUSA Retained earnings (deficit)	CUSA Accumulated other comprehensive loss	CUSA Total Cinemark Holdings, Inc.'s Stockholders' Equity	CUSA Noncontrolling Interests
Balance, beginning of period at Dec. 31, 2021		$ 334.5	$ 0.1	$ (91.1)	$ 1,197.8	$ (389.4)	$ (394.5)	$ 322.9	$ 11.6	$ 554.9	$ 49.5	$ 0.0	$ (24.2)	$ 1,459.0	$ (544.0)	$ (397.0)	$ 543.3	$ 11.6
Balance (in shares) beginning of period at Dec. 31, 2021			125.1								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(1.6)		(1.6)				(1.6)
Issuance of stock share upon vesting of performance stock units			0.1
Issuance of share based awards and share based awards compensation expense		5.1			5.1			5.1
Issuance of share based awards and share based awards compensation expense, (in shares)			0.7
Share based awards compensation expense										4.9				4.9			4.9
Net income (loss)		(72.5)				(74.0)		(74.0)	1.5	(61.0)					(62.5)		(62.5)	1.5
Amortization of accumulated losses for amended swap agreements		1.1					1.1	1.1		1.1						1.1	1.1
Other comprehensive income		32.8					32.8	32.8		29.0						29.0	29.0
Balance, end of period at Mar. 31, 2022		299.4	$ 0.1	(92.7)	1,202.9	(463.4)	(360.6)	286.3	13.1	528.9	$ 49.5	$ 0.0	(24.2)	1,463.9	(606.5)	(366.9)	515.8	13.1
Balance (in shares) ending of period at Mar. 31, 2022			125.9								200,000	0
Balance, beginning of period at Dec. 31, 2021		334.5	$ 0.1	(91.1)	1,197.8	(389.4)	(394.5)	322.9	11.6	554.9	$ 49.5	$ 0.0	(24.2)	1,459.0	(544.0)	(397.0)	543.3	11.6
Balance (in shares) beginning of period at Dec. 31, 2021			125.1								200,000	0
Net income (loss)	$ (169.2)	(169.2)								(140.9)
Other comprehensive income		28.3								25.5
Balance, end of period at Sep. 30, 2022		205.4	$ 0.1	(95.2)	1,214.1	(561.3)	(362.9)	194.8	10.6	454.6	$ 49.5	$ 0.0	(24.2)	1,474.5	(687.6)	(368.2)	444.0	10.6
Balance (in shares) ending of period at Sep. 30, 2022			126.1								200,000	0
Balance, beginning of period at Mar. 31, 2022		299.4	$ 0.1	(92.7)	1,202.9	(463.4)	(360.6)	286.3	13.1	528.9	$ 49.5	$ 0.0	(24.2)	1,463.9	(606.5)	(366.9)	515.8	13.1
Balance (in shares) beginning of period at Mar. 31, 2022			125.9								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(0.5)		(0.5)				(0.5)
Issuance of share based awards and share based awards compensation expense		6.0			6.0			6.0
Issuance of share based awards and share based awards compensation expense, (in shares)			0.2
Share based awards compensation expense										5.7				5.7			5.7
Net income (loss)		(72.8)				(73.4)		(73.4)	0.6	(65.3)					(65.9)		(65.9)	0.6
Distributions to noncontrolling interests		(3.0)							(3.0)	(3.0)								(3.0)
Amortization of accumulated losses for amended swap agreements		1.1					1.1	1.1		1.1						1.1	1.1
Other comprehensive income		(11.5)					(11.5)	(11.5)		(8.7)						(8.7)	(8.7)
Balance, end of period at Jun. 30, 2022		218.7	$ 0.1	(93.2)	1,208.9	(536.8)	(371.0)	208.0	10.7	458.7	$ 49.5	$ 0.0	(24.2)	1,469.6	(672.4)	(374.5)	448.0	10.7
Balance (in shares) ending of period at Jun. 30, 2022			126.1								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(2.0)		(2.0)				(2.0)
Issuance of share based awards and share based awards compensation expense		5.2			5.2			5.2
Share based awards compensation expense										4.9				4.9			4.9
Net income (loss)	(23.9)	(23.9)				(24.5)		(24.5)	0.6	(14.6)					(15.2)		(15.2)	0.6
Distributions to noncontrolling interests		(0.7)							(0.7)	(0.7)								(0.7)
Amortization of accumulated losses for amended swap agreements		1.1					1.1	1.1		1.1						1.1	1.1
Other comprehensive income		7.0					7.0	7.0		5.2						5.2	5.2
Balance, end of period at Sep. 30, 2022		205.4	$ 0.1	(95.2)	1,214.1	(561.3)	(362.9)	194.8	10.6	454.6	$ 49.5	$ 0.0	(24.2)	1,474.5	(687.6)	(368.2)	444.0	10.6
Balance (in shares) ending of period at Sep. 30, 2022			126.1								200,000	0
Balance, beginning of period at Dec. 31, 2022		119.5	$ 0.1	(95.4)	1,219.3	(660.6)	(353.2)	110.2	9.3	381.9	$ 49.5	$ 0.0	(24.2)	1,479.5	(775.9)	(356.3)	372.6	9.3
Balance (in shares) beginning of period at Dec. 31, 2022			126.1								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(2.1)		(2.1)				(2.1)
Issuance of stock share upon vesting of performance stock units			0.1
Issuance of share based awards and share based awards compensation expense		5.7			5.7			5.7
Issuance of share based awards and share based awards compensation expense, (in shares)			1.3
Share based awards compensation expense										5.4				5.4			5.4
Net income (loss)		(2.5)				(3.1)		(3.1)	0.6	6.3					5.7		5.7	0.6
Amortization of accumulated losses for amended swap agreements		(1.5)					(1.5)	(1.5)		(1.5)						(1.5)	(1.5)
Other comprehensive income		4.7					4.7	4.7		4.7						4.7	4.7
Balance, end of period at Mar. 31, 2023		123.8	$ 0.1	(97.5)	1,225.0	(663.7)	(350.0)	113.9	9.9	396.8	$ 49.5	$ 0.0	(24.2)	1,484.9	(770.2)	(353.1)	386.9	9.9
Balance (in shares) ending of period at Mar. 31, 2023			127.5								200,000	0
Balance, beginning of period at Dec. 31, 2022		119.5	$ 0.1	(95.4)	1,219.3	(660.6)	(353.2)	110.2	9.3	381.9	$ 49.5	$ 0.0	(24.2)	1,479.5	(775.9)	(356.3)	372.6	9.3
Balance (in shares) beginning of period at Dec. 31, 2022			126.1								200,000	0
Net income (loss)	209.1	209.1								226.6
Other comprehensive income		(3.0)								(3.0)
Balance, end of period at Sep. 30, 2023		335.1	$ 0.1	(97.9)	1,238.2	(454.4)	(360.7)	325.3	9.8	616.6	$ 49.5	$ 0.0	(24.2)	1,497.5	(552.2)	(363.8)	606.8	9.8
Balance (in shares) ending of period at Sep. 30, 2023			127.6								200,000	0
Balance, beginning of period at Mar. 31, 2023		123.8	$ 0.1	(97.5)	1,225.0	(663.7)	(350.0)	113.9	9.9	396.8	$ 49.5	$ 0.0	(24.2)	1,484.9	(770.2)	(353.1)	386.9	9.9
Balance (in shares) beginning of period at Mar. 31, 2023			127.5								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(0.3)		(0.3)				(0.3)
Issuance of share based awards and share based awards compensation expense		6.8			6.8			6.8
Issuance of share based awards and share based awards compensation expense, (in shares)			0.1
Share based awards compensation expense										6.5				6.5			6.5
Net income (loss)		120.4				119.1		119.1	1.3	121.5					120.2		120.2	1.3
Distributions to noncontrolling interests		(1.1)							(1.1)	(1.1)								(1.1)
Amortization of accumulated losses for amended swap agreements		(1.5)					(1.5)	(1.5)		(1.5)						(1.5)	(1.5)
Other comprehensive income		6.7					6.7	6.7		6.7						6.7	6.7
Balance, end of period at Jun. 30, 2023		254.8	$ 0.1	(97.8)	1,231.8	(544.6)	(344.8)	244.7	10.1	528.9	$ 49.5	$ 0.0	(24.2)	1,491.4	(650.0)	(347.9)	518.8	10.1
Balance (in shares) ending of period at Jun. 30, 2023			127.6								200,000	0
Restricted stock forfeitures and stock withholdings related to share based awards that vested		(0.1)		(0.1)				(0.1)
Issuance of share based awards and share based awards compensation expense		6.4			6.4			6.4
Share based awards compensation expense										6.1				6.1			6.1
Net income (loss)	$ 91.2	91.2				90.2		90.2	1.0	98.8					97.8		97.8	1.0
Distributions to noncontrolling interests		(1.3)							(1.3)	(1.3)								(1.3)
Amortization of accumulated losses for amended swap agreements		(1.5)					(1.5)	(1.5)		(1.5)						(1.5)	(1.5)
Other comprehensive income		(14.4)					(14.4)	(14.4)		(14.4)						(14.4)	(14.4)
Balance, end of period at Sep. 30, 2023		$ 335.1	$ 0.1	$ (97.9)	$ 1,238.2	$ (454.4)	$ (360.7)	$ 325.3	$ 9.8	$ 616.6	$ 49.5	$ 0.0	$ (24.2)	$ 1,497.5	$ (552.2)	$ (363.8)	$ 606.8	$ 9.8
Balance (in shares) ending of period at Sep. 30, 2023			127.6								200,000	0